Varnish-filter.



C. J. HEALY.

VARNISH FILTER.

APPLICATION FILED 0021.29, 1910.

1,000,405. Patented Aug. 15, 1911.

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with Leases: I svwowtoz O. J. HEALY.

VARNISH FILTER. APPLICATION PIL'ED oaTfze, 1910.

1,000,405;v Patentd Aug. 15, 1911.

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I Houxu I varnishes and similar struct the filter CHRISTOPHER J. HEALY, OF BROOKLYN, NEW YORK.

VARNISHJFIIJTEB.

Specification of Letters Patent. Patented Aug. 15, 1911.

Application filed October 29,1910. Serial No. 589.661.

To all whom it may concern:

Be it known that I, Cnnrsrorann J. HEALY, a citizen of the United States of America, and a resident of Brooklyn, Kings county, New York, have invented certain new and useful Filters, of which the following is a specification.

This invention relates to filters and has particular reference to filters .for filtering liquids which require special care in their preparation for the market.

It is the object of this invention, to provide a filter adapted to filter varnish rapidly and thoroughly; to provide a portable apparatus adapted to be operated with but very little attention and one which requires no special space, but which may be placed most anywhere in the factory and to con of but few parts so as to make the cleaning of it a work of but a few minutes.

Other objects will appear. as this specification roceeds.

To t is end .the invention comprises such combinations and arrangements of parts as is hereinafter set forth in detail while reference is had to the accompanying drawings segment shaped openings 17.

in which Figure 1 is acentral vertical section of a filter embodying my invention. Fig. 2 is a top plan view partly in section. Fig. 3 is a plan view of one of the filtering cylinders. Fig. 4 is a fragmentary elevation of a filter cylinder, and Fig. 5 is a wall of a filter cylinder.

In the drawings the reference numeral 6 represents a cylindrical casing within which the filter cylinders are supported. 7 denotes the inner top providedwith the upper cone shaped surface 8 having its highest point 9 in the center and which is in threaded engagement as at 10 with the outer top 11 which is provided with the inner cone shaped surface 12 whereby a cone shaped chamber 13 is formed 7 and 11. The outer top 11 is provided with a threaded inlet 14 into which is screwed the inlet pipe 15. The chamber 13 communi- (rates with the filter chamber The top 7 isprovlded with a number of concentric grooves=-=18, 18 and the top 11 carries three lugs 19, 19 through which pass the bolts 20 which connect the top withthe bot-' Improvements in Varnish of concentric clamping 7 ring at 21113 serve detail view of the between the members I 16 through the tom .21. The contour of the latter .is preferably similar to the contour of the top as shown in Fig. 2. The bolts 20 also pass through lugs 19 on the bottom.

The outer casin 6 is held in position between the top an bottom by the annular grooves 22, 22 in each the bottom is alsoprovided with a number grooves 18 corresponding to those in the top 7.

23 is a threadedoutlet in the bottomiand 24 the outlet pipe. The edges at 25 are preferably rounded as shown.

In the grooves 18 are held the perforated filter cylinders 26, 27 and 28. Around each of these there is wrapped a filter cloth 29 held in position by an .upper and a lower 30 adapted to be tightened by the bolt 31. For large detail ,views of these parts see Figs. 3, 4 and 5. The cloth or fabric 29 may be of any suitable material found useful for the purpose.

In operation the filter may be inserted in the piping through which the varnish flows suitable point. It will here be obthat this filter requires no special place or appliances for installing it, but it may be connected to the manner as an ordinary valve. Also it will of these members, and

piping in the same be noted that it is distinctly a portable filter and that it requires no attention during its operation, except periodical cleaning. The unfiltered varnish gravity through the inlet pipe '15; falls on the cone shaped surfaceS and flows gently down the latter to the filter chamber 16. I have found that the cone shaped surface is useful in that thereby the accumulation'of solid matter directly under the inlet is prevented. A varnish contains much solid matter before it is filtered and if the surface 8 was flat the solids would accumulate 'at the inlet and clog the same or perhaps in time fill the entire chamber 13. The sloping surface 8 prevents this from happening and enables the varnish to flow in all directions I downward toward the openings 17 carrying all solid matter along with it. The varnish fills the chamber 16 and begins immediately to pass through the filter cylinder 26, while the grosser solids and impurities fall to the bottom of the chamber 16. The varnish drips down on theinside of beginning to fill the chamber 32. From thence it passes through filter 27 to chamber 33, then through filter 28 to chamber 34 enters the filter by the filter 26 where it flows down on the inside to the outlet and leaves the filter through pipe '24.

The arrows in Fig. 1 indicate the general direction of the flow. through the several sink to the bottom chamber 33 there impurities at all.

that even if the outer As the varnish passes filters, the impurit'nes On the bottom of the will be very little or no It will also be observed chamber 16 should be,

say half -filled with solids, it in no wise mpairs the efiiciency It has been found works rapidly and dfthe filter.

bi tests that this filter t oroughly filters the varnish. Insome instances no settling of the liquid is required .after it has through this. filter, into the shipping tanks.

evident that the passed but it may pass dlrectly It will also be filter is very easily taken apart, cleaned, new -filter cloths inserted and again assembled.

Further, byreason of it's simple construction it can be manufactured at very low cost, hence several filters may be 7 used in a plant without great expense. An-

other very impor tant feature is that this filter does not demandthe steady service of one or more operators.

The above is thought and explain this of course be invention. Changes may made in the detailed'construction without affecting the scope of the invention.

. I claim:

A filter apparatus comprising in comb'- nation an outer top member having 'a central inlet and spaced fastening lugs'f and probe confined to fully" set forth of October 1910.

, corresponding to the grooves in the aforea casing adapted to said two to members,

etween the said outer top member and the said bottom member in the aninner top member groovestherein, concentric filter cylinders adapted to be ner top member and the said bottom memher in the grooves therein and comprising each a perforated cylinder, filter cloths wrapped around the same and-an upper and a lower clamping ring. for the filter cloths to the said filtergy'finders', con-' centric filter chambers form betweentlie said cylinders and within the-*said casing, passages formed in the said inner top memsmallest one of which communicates with the aforesaid outlet. and bolts through the said lugs for e sai the said cylinders-in position.

' this 10th day CHRISTOP ER JJHEALY. Witnesses:

WM. J .R

casing and Signed at Brooklyn,

confined between the said inp er at the base of the said ooneshaped "chamber. and ,communicat'- with. the largest'one of the said filters, embers, the 

